Katana is not in the OP Stack superchain registry, so it needs
custom genesis.json and rollup.json files instead of the built-in
network name. Follows the same pattern as superseed-mainnet.
Changes:
- Remove GETH_OP_NETWORK env var
- Add genesis init in entrypoint (checks if /data/geth exists)
- Add --networkid=747474
- Mount op/katana/mainnet as /config in both geth and op-node
- Replace OP_NODE_NETWORK with OP_NODE_ROLLUP_CONFIG
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
